He's good in several sports and they are listed as his hobbies in his ISU Bio: golf, cycling, skiing, tennis, video games, but there is a new addition: paper trading. So he's really into the financial markets now as he has said on occasions.

Also in the bio:

He practiced many other sports including tennis, skiing, swimming and taekwondo before focusing on skating.

eta And at the risk provoking another round of cries of treason by bringing this up, spikydurian, did you read his interview in Singapore that he would like to represent S'pore in skiing or tennis when he's done competing in figure skating? He loves the food there and, in time, who knows, maybe durian too?